Does anybody run the 1600 or 3200?

Is running on the spot as beneficial as actually running outside or in a treadmill ?

is running up and down stairs a good work out? if so, how many should I do a day?

I heard that when running, the most used muscle is your abdomnal??? is it true??

Which burns more calories: biking or running? Like if you did each for an hour which would burn more?

When im running at about 4:58 pace a mile is it true that the lactic acid that you get in your legs is just mental? Is it rea...

About how many calories do you burn when you run a mile?

I was wondering if I Bike a certain amount of miles is there an equivalent to a amount of miles running

people say 2 burn fat you need 2 do cardio or aerobic. what im wondering is how are you supposed 2 run or jump rope 4 20 min ...

I'm going to Police training college (still not sure exactly when...) But I was wondering if there are any ex navy/marines/po...

I have to run a mile in 2 days, and I have never ran one before. I weigh 154 Ibs, and I am a slow runner. I am overweight. (I...